EP3028560B1 - Concave assembly for a combine harvester - Google Patents
Concave assembly for a combine harvester Download PDFInfo
- Publication number
- EP3028560B1 EP3028560B1 EP15195623.2A EP15195623A EP3028560B1 EP 3028560 B1 EP3028560 B1 EP 3028560B1 EP 15195623 A EP15195623 A EP 15195623A EP 3028560 B1 EP3028560 B1 EP 3028560B1
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- Prior art keywords
- threshing
- scraper
- arrangement according
- threshing cage
- crop
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- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 235000013339 cereals Nutrition 0.000 description 11
- 239000010902 straw Substances 0.000 description 6
- 238000003306 harvesting Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 241000251169 Alopias vulpinus Species 0.000 description 1
- 240000006829 Ficus sundaica Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/24—One-part threshing concaves
Definitions
- the invention relates to a threshing concave arrangement for a combine harvester, comprising a concave and a crop processing device upstream of the concave, comprising a body having projections arranged on the surface of the body, the body being mounted about a pivot axis extending along the input side of the concave between a first position in which the projections cooperate with crop, and a second position in which a smooth guide surface of the body cooperates with the crop rotatable and lockable in said positions, and on the input side of the concave a scraper is arranged, which extends up to extending immediately downstream of the body position.
- Agricultural combines are large machines that carry crop, harvest, thresh, separate and clean agriculturally grown crops that carry grain.
- the resulting clean grain is stored in a grain tank on the combine harvester.
- For threshing usually serve Tangentialdresch Roaden with a threshing concave and the crop tangentially promoting threshing drum or the crop axially conveying Axialdresch noticeden with Axialdreschrotoren, which also cooperate with a concave.
- the concaves are composed of curved and transverse strips that leave spaces between them.
- the concave surrounds the threshing drum over part of its circumference and closes with it a gap through which the crop to be threshed is forced.
- crop parts While the crop is being conveyed through the gap, crop parts (the grain) separate, fall through the interstices, and are fed to a purifier. Due to the nature of the crop, components can be more or less easily dissolved out, so that it makes sense to be able to adjust the Dreschkörbe the respective crop.
- the DE 1 130 641 A describes a concave with a front concave extension with U-shaped cross-section which is pivotable about an axis parallel to the axis of rotation of the threshing drum extending axis in order to move between an active position and an inactive position can.
- the middle leg of the U acts in the active position threshing with the crop, while the in the inactive position rotated by 180 ° Dreschkorbverinrung then serves as a stone trap.
- the DE 1 130 640 A describes a front Dreschkorbverinrung for a combine, which is articulated pivotably about an axis parallel to the Dreschtrommelachse extending axis.
- the concave extension In one position, the concave extension extends the concave forward, and in a downwardly pivoted second position, a smooth guide surface forms a front bridging of a stone trap.
- a gap serving as a stone trap, while the gap is in front of the concave extension when the concave extension is active. Then the concave extension forms a leading edge which impedes crop flow.
- the US 1 334 910 A shows a concave in which substantially rectangular shaped elements are rotatable about their longitudinal axes, so that a first, smooth surface and a second toothed surface can be selectively brought into engagement with the crop. Between adjacent elements and the subsequent stationary threshing floor covering remain gaps in which accumulate crops and can hinder the Erntegutl.
- a disadvantage here is to be considered that either relatively large adjusting forces are applied to rotate the body between the first and second position when the scraper rests directly on the body, so that the frictional forces are overcome and also a certain amount of wear, or an undesirable Gap between the body and the scraper remains.
- a threshing concave arrangement for a combine is composed of a concave and a crop processing device upstream of the concave on the input side, which comprises a body with projections arranged on the surface of the body.
- the body is rotatable and lockable in said positions about a pivot axis extending along the entrance side of the concave between a first position where the projections cooperate with crop and a second position wherein a smooth guide surface of the body cooperates with the crop ,
- a scraper is arranged, which extends to a position immediately downstream of the body.
- the body is shaped to be spaced from the wiper in the first position and to abut the wiper in the second position.
- the gap makes it possible to rotate the body with relatively little adjusting forces about the pivot axis to the second position, in which only the smooth guide surface of the body is in engagement with the crop. In this second position, the body seals against the wiper so there is no longer any gap between the wiper and the body where unwanted crops may accumulate and interfere with the crop flow.
- the body may be shaped to deform the wiper outwardly in its second position. Also, the body may be shaped so that it gets into abutment with the scraper only towards the end of its displacement in the second position.
- the body has a downstream arcuate portion that abuts the wiper in the second position and an upstream portion to which the projections are attached.
- the body can be in the area where the projections are attached to be flat in itself.
- the body in its downstream, curved region, the body may be concentric with an axis which is offset with respect to the pivot axis, in particular in the direction of flow of the material towards the rear.
- the scraper can be designed as an angle-shaped metal sheet, one leg of which extends tangentially to the crop flow direction to the position immediately downstream of the body and the other leg extends parallel to a mounted on the input side of the concave Dreschelf and is connected to this Dreschelf.
- the concave arrangement can interact with a tangentially conveying threshing drum or an axially conveying axial threshing rotor.
- FIG. 1 shows a self-propelled combine harvester 10 with a frame 12 which is supported on front, driven and rear steerable wheels 14 on the ground and is moved away from them.
- the wheels 14 are rotated by means not shown drive means to move the combine 10, for example via a field to be harvested.
- a harvesting device 18 in the form of a cutting unit is detachably connected to crop in the form of harvesting operation harvesting cereals or other threshable culottes from the field and feeding them up and back by a feederhouse 20 to a multi-drum threshing unit, arranged one behind the other in the direction of travel V, a threshing drum 22, a stripping drum 24, a supercharging drum 26, a separating drum 28 and a discharge conveyor 30 includes. Downstream of the discharge conveyor 30 is a straw walker 32.
- the threshing drum 22 is surrounded by a concave 34 in its lower and rear regions.
- a front conveyor floor 40 Below the multi-drum thresher is a front conveyor floor 40.
- a rear conveyor floor 42 is disposed below the straw walker 32.
- the conveying trays 40, 42 transport the mixture of grain, short straw and chaff from the threshing concave 34, the separating basket 46 and the separating grate 38 and from the straw shaker 32 to a cleaning device 46.
- Grain cleaned by the cleaning device 46 is fed by means of a grain screw 48 to an elevator (not shown) which transports it to a grain tank 50.
- a tailing auger 52 returns unmanaged ear parts through another elevator, not shown, back into the threshing process.
- the chaff may be ejected at the rear of the screen by a rotating chaff spreader, or it may be discharged through a straw chopper (not shown) located downstream of the straw walker 32.
- the cleaned grain from the grain tank 50 may be unloaded by a discharge system with cross augers 54 and a discharge conveyor 56.
- the systems mentioned are driven by means of an internal combustion engine 58 and controlled and controlled by an operator from a driver's cab 60.
- the various devices for threshing, conveying, cleaning and separating are located within the frame 12. Outside the frame 12 is an outer shell, which is largely hinged.
- the threshing mechanism could include only the threshing cylinder 22, the stripper drum 24 and the discharge conveyor 30, i. be designed as a conventional Tangentialdrehisk without Abscheidetrommel 28 and without conveyor drum 26, wherein the discharge conveyor 30 directly follows the threshing cylinder 22.
- all directions, such as front, rear, above and below refer to the forward direction of travel V of the combine 10th
- the concave 34 itself is of conventional construction and comprises two arcuate, adapted to the radius of the threshing drum 22 side cheeks 62, extending between which threshing 68. In the circumferential direction of the threshing cylinder 22, the concave 34 comprises further curved strips 64, between which basket wires 76 are arranged.
- the threshing concave 34 is preceded by a Erntegutbearbeitungs worn with respect to the flow direction of the crop.
- the Erntegutbearbeitungs nowadays comprises a body 66 which is fixed to a pivotable shaft 80 and in a first position (see. FIG. 5 ) and a second position (cf. FIGS. 3 and 4 ) is arrestable and in its downstream region has a smooth guide surface 70.
- Immediately downstream of the body 66 is followed by an angular scraper 84, the rear, vertical leg is attached to the input side ram 68 of the concave 34 and its front, approximately horizontal legs extending from the ram 68 forward to a position immediately downstream of the body 66 extends at the front end of the scraper 84.
- the body 66 comprises an axially extending plate 92 which is fixed to the shaft 80.
- the plate 92 carries in its front region a so-called Entgranner- or Intensivdreschology 82 with projections or ribs and recesses arranged therebetween.
- the sheet metal 92 forms in its rear region the smooth guide surface 70.
- the sheet 92 is formed flat in itself and in the region of the guide surface 70, the sheet 92 is circular cylindrical in itself bent with an imaginary axis 88, which is offset from the pivot axis 86 of the shaft 80 to the rear, see.
- FIGS. 4 and 5 In his first, in FIG.
- the pivoting movement can be carried out by means of a suitable actuator or manually by the operator, with suitable transmission means can be provided, with which the pivoting movement can be accomplished manually or externally powered from the driver's cab 60.
- the Erntegutbearbeitungs Rhein 56 is disposed between the side walls 62 in the front region.
- the eccentric arrangement of the axis 88 relative to the pivot axis 86 causes the plate 92 is spaced in the first position from the scraper 84 (s. FIG. 5 ), in the second position ( FIG. 4 ) but abuts the wiper 84 and this bends upwards, so that then a sealing effect is achieved, however, the pivoting movement over the largest part of the adjustment (until shortly before reaching the second position) without greater friction is feasible.
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Description
Die Erfindung betrifft eine Dreschkorbanordnung für einen Mähdrescher, mit einem Dreschkorb und einer dem Dreschkorb eingangsseitig vorgelagerten Erntegutbearbeitungseinrichtung, die einen Körper mit an der Oberfläche des Körpers angeordneten Vorsprüngen umfasst, wobei der Körper um eine sich entlang der Eingangsseite des Dreschkorbs erstreckende Schwenkachse zwischen einer ersten Position, in der die Vorsprünge mit Erntegut zusammenwirken, und einer zweiten Position, in der eine glatte Führungsfläche des Körpers mit dem Erntegut zusammenwirkt, drehbar und in den besagten Positionen arretierbar ist, und an der Eingangsseite des Dreschkorbs ein Abstreifer angeordnet ist, der sich bis zu einer unmittelbar stromab des Körpers gelegenen Position erstreckt.The invention relates to a threshing concave arrangement for a combine harvester, comprising a concave and a crop processing device upstream of the concave, comprising a body having projections arranged on the surface of the body, the body being mounted about a pivot axis extending along the input side of the concave between a first position in which the projections cooperate with crop, and a second position in which a smooth guide surface of the body cooperates with the crop rotatable and lockable in said positions, and on the input side of the concave a scraper is arranged, which extends up to extending immediately downstream of the body position.
Landwirtschaftliche Mähdrescher sind große Maschinen, die landwirtschaftlich angebautes Erntegut, das Korn trägt, ernten, dreschen, trennen und reinigen. Das erhaltene saubere Korn wird in einem am Mähdrescher angeordneten Korntank gespeichert. Zum Dreschen dienen in der Regel Tangentialdrescheinrichtungen mit einem Dreschkorb und einer das Erntegut tangential fördernden Dreschtrommel oder das Erntegut axial fördernde Axialdrescheinrichtungen mit Axialdreschrotoren, die ebenfalls mit einem Dreschkorb zusammenwirken. Die Dreschkörbe setzen sich aus Bogen- und Querleisten zusammen, die zwischen sich Zwischenräume belassen. Der Dreschkorb umgibt die Dreschtrommel über einen Teil ihres Umfangs und schließt mit ihr einen Spalt ein, durch den das zu dreschende Erntegut gezwängt wird. Während das Erntegut durch den Spalt gefördert wird, scheiden sich Erntegutteile (das Korn) ab, fallen durch die Zwischenräume und werden einer Reinigungseinrichtung zugeführt. Aufgrund der Beschaffenheit des Ernteguts lassen sich Bestandteile mehr oder weniger gut herauslösen, so dass es sinnvoll ist, die Dreschkörbe dem jeweiligen Erntegut anpassen zu können.Agricultural combines are large machines that carry crop, harvest, thresh, separate and clean agriculturally grown crops that carry grain. The resulting clean grain is stored in a grain tank on the combine harvester. For threshing usually serve Tangentialdrescheinrichtungen with a threshing concave and the crop tangentially promoting threshing drum or the crop axially conveying Axialdrescheinrichtungen with Axialdreschrotoren, which also cooperate with a concave. The concaves are composed of curved and transverse strips that leave spaces between them. The concave surrounds the threshing drum over part of its circumference and closes with it a gap through which the crop to be threshed is forced. While the crop is being conveyed through the gap, crop parts (the grain) separate, fall through the interstices, and are fed to a purifier. Due to the nature of the crop, components can be more or less easily dissolved out, so that it makes sense to be able to adjust the Dreschkörbe the respective crop.
Die
Die
Die
Schließlich zeigt die als gattungsbildend angesehene
Die der Erfindung zu Grunde liegende Aufgabe wird darin gesehen, eine Dreschkorbanordnung eingangs genannter Art für einen Mähdrescher bereitzustellen, bei dem die erwähnten Probleme nicht oder in vermindertem Maße vorliegen.The object underlying the invention is seen therein, a concave arrangement to provide initially mentioned type for a combine harvester, in which the mentioned problems are not present or to a lesser extent.
Diese Aufgabe wird erfindungsgemäß durch die Lehre des Patentanspruchs 1 gelöst, wobei in den weiteren Patentansprüchen Merkmale aufgeführt sind, die die Lösung in vorteilhafter Weise weiterentwickeln.This object is achieved by the teaching of claim 1, wherein in the other claims features are listed, which further develop the solution in an advantageous manner.
Eine Dreschkorbanordnung für einen Mähdrescher setzt sich aus einem Dreschkorb und einer dem Dreschkorb eingangsseitig vorgelagerten Erntegutbearbeitungseinrichtung zusammen, die einen Körper mit an der Oberfläche des Körpers angeordneten Vorsprüngen umfasst. Der Körper ist um eine sich entlang der Eingangsseite des Dreschkorbs erstreckende Schwenkachse zwischen einer ersten Position, in der die Vorsprünge mit Erntegut zusammenwirken, und einer zweiten Position, in der eine glatte Führungsfläche des Körpers mit dem Erntegut zusammenwirkt, drehbar und in den besagten Positionen arretierbar. An der Eingangsseite des Dreschkorbs ist ein Abstreifer angeordnet, der sich bis zu einer unmittelbar stromab des Körpers gelegenen Position erstreckt. Der Körper ist derart geformt, dass er in der ersten Position vom Abstreifer beabstandet ist und in der zweiten Position am Abstreifer anliegt.A threshing concave arrangement for a combine is composed of a concave and a crop processing device upstream of the concave on the input side, which comprises a body with projections arranged on the surface of the body. The body is rotatable and lockable in said positions about a pivot axis extending along the entrance side of the concave between a first position where the projections cooperate with crop and a second position wherein a smooth guide surface of the body cooperates with the crop , On the input side of the concave a scraper is arranged, which extends to a position immediately downstream of the body. The body is shaped to be spaced from the wiper in the first position and to abut the wiper in the second position.
Mit anderen Worten entsteht in der ersten Position des Körpers, in welcher die Vorsprünge mit dem Erntegut im Eingriff sind, ein gewisser Spalt zwischen dem Körper und dem Abstreifer. Dieser Spalt macht sich in dieser Position nicht störend bemerkbar, da die Vorsprünge dafür sorgen, dass der größte Teil des Ernteguts überhaupt nicht mit dem Abstreifer in Kontakt kommt. Der Spalt ermöglicht es jedoch, den Körper mit relativ geringen Verstellkräften um die Schwenkachse in die zweite Position zu drehen, in welcher nur die glatte Führungsfläche des Körpers im Eingriff mit dem Erntegut ist. In dieser zweiten Position liegt der Körper dichtend am Abstreifer an, sodass kein Spalt mehr zwischen dem Abstreifer und dem Körper vorhanden ist, in dem sich unerwünschtes Erntegut ansammeln und den Erntegutfluss stören könnte.In other words, in the first position of the body in which the protrusions engage the crop, there is some gap between the body and the scraper. This gap is not disturbing in this position, since the projections ensure that the largest part of the crop does not come into contact with the scraper at all. However, the gap makes it possible to rotate the body with relatively little adjusting forces about the pivot axis to the second position, in which only the smooth guide surface of the body is in engagement with the crop. In this second position, the body seals against the wiper so there is no longer any gap between the wiper and the body where unwanted crops may accumulate and interfere with the crop flow.
Der Körper kann insbesondere derart geformt sein, dass er in seiner zweiten Position den Abstreifer nach außen verformt. Auch kann der Körper derart geformt sein, dass er erst gegen Ende seines Verstellwegs in die zweite Position mit dem Abstreifer in Anlage gerät.In particular, the body may be shaped to deform the wiper outwardly in its second position. Also, the body may be shaped so that it gets into abutment with the scraper only towards the end of its displacement in the second position.
Bei einer möglichen Ausführungsform weist der Körper einen stromab liegenden, in sich gekrümmten Bereich auf, der in der zweiten Position am Abstreifer anliegt, und einen stromauf liegenden Bereich, an dem die Vorsprünge angebracht sind. Der Körper kann in dem Bereich, an dem die Vorsprünge angebracht sind, in sich flach sein. In seinem stromab liegenden, in sich gekrümmten Bereich kann der Körper hingegen konzentrisch zu einer Achse sein, die gegenüber der Schwenkachse versetzt ist, insbesondere in der Gutflussrichtung nach hinten.In one possible embodiment, the body has a downstream arcuate portion that abuts the wiper in the second position and an upstream portion to which the projections are attached. The body can be in the area where the projections are attached to be flat in itself. On the other hand, in its downstream, curved region, the body may be concentric with an axis which is offset with respect to the pivot axis, in particular in the direction of flow of the material towards the rear.
Der Abstreifer kann als winkelförmiges Blech ausgeführt sein, dessen einer Schenkel sich tangential zur Gutflussrichtung bis zur unmittelbar stromab des Körpers gelegenen Position erstreckt und dessen anderer Schenkel sich parallel zu einer an der Eingangsseite des Dreschkorbs angebrachten Dreschleiste erstreckt und mit dieser Dreschleiste verbunden ist.The scraper can be designed as an angle-shaped metal sheet, one leg of which extends tangentially to the crop flow direction to the position immediately downstream of the body and the other leg extends parallel to a mounted on the input side of the concave Dreschleiste and is connected to this Dreschleiste.
Die Dreschkorbanordnung kann mit einer tangential fördernden Dreschtrommel oder einem axial fördernden Axialdreschrotor zusammenwirken.The concave arrangement can interact with a tangentially conveying threshing drum or an axially conveying axial threshing rotor.
Anhand der Abbildungen wird ein Ausführungsbeispiel der Erfindung erläutert. Es zeigt:
- Fig. 1
- eine teilgeschnittene seitliche Ansicht eines Mähdreschers mit einer Dreschkorbanordnung,
- Fig. 2
- eine perspektivische Ansicht der Dreschkorbanordnung aus
Figur 1 , - Fig. 3
- eine vergrößerte seitliche perspektivische Ansicht der Dreschkorbanordnung aus
Figur 2 , in der sich der Körper der eingangsseitigen Erntegutbearbeitungsvorrichtung in seiner zweiten Position befindet, - Fig. 4
- eine seitliche Ansicht der Erntegutbearbeitungseinrichtung aus
Figur 2 , und - Fig. 5
- eine seitliche Ansicht der Erntegutbearbeitungseinrichtung aus
Figur 2 , jedoch bei in der ersten Position befindlichem Körper.
- Fig. 1
- a partially cutaway side view of a combine harvester with a concave arrangement,
- Fig. 2
- a perspective view of the concave arrangement
FIG. 1 . - Fig. 3
- an enlarged side perspective view of the concave arrangement
FIG. 2 in which the body of the input-side crop processing device is in its second position, - Fig. 4
- a side view of the Erntegutbearbeitungseinrichtung
FIG. 2 , and - Fig. 5
- a side view of the Erntegutbearbeitungseinrichtung
FIG. 2 but with the body in the first position.
Die
An den vorderen Endbereich des Mähdreschers 10 ist eine Erntegutbergungsvorrichtung 18 in Form eines Schneidwerks abnehmbar angeschlossen, um beim Erntebetrieb Erntegut in Form von Getreide oder anderen, dreschbaren Halmfrüchten von dem Feld zu ernten und es nach oben und hinten durch einen Schrägförderer 20 einem Mehrtrommeldreschwerk zuzuführen, das - in Fahrtrichtung V hintereinander angeordnet - eine Dreschtrommel 22, eine Abstreiftrommel 24, eine oberschlächtig arbeitende Fördertrommel 26, eine Abscheidetrommel 28 sowie einen Abgabeförderer 30 umfasst. Stromab des Abgabeförderers 30 befindet sich ein Strohschüttler 32. Die Dreschtrommel 22 ist in ihrem unteren und rückwärtigen Bereich von einem Dreschkorb 34 umgeben. Unterhalb der Fördertrommel 26 ist eine mit Öffnungen versehene oder geschlossene Abdeckung 35 angeordnet, während sich oberhalb der Fördertrommel 26 eine fest stehende Abdeckung und unterhalb der Abscheidetrommel 28 ein Abscheidekorb 36 mit verstellbaren Fingerelementen befindet. Unterhalb des unterschlächtig fördernden Abgabeförderers 30 ist ein Trennrost 38 angeordnet.At the front end portion of the
Unterhalb des Mehrtrommeldreschwerks befindet sich ein vorderer Förderboden 40. Ein hinterer Förderboden 42 ist unterhalb des Strohschüttlers 32 angeordnet. Die Förderböden 40, 42 transportieren das Gemisch aus Korn, Kurzstroh und Spreu vom Dreschkorb 34, vom Abscheidekorb 46 und vom Trennrost 38 sowie vom Strohschüttler 32 zu einer Reinigungseinrichtung 46. Durch die Reinigungseinrichtung 46 gereinigtes Getreide wird mittels einer Körnerschnecke 48 einem nicht gezeigten Elevator zugeführt, der es in einen Korntank 50 befördert. Eine Überkehrschnecke 52 gibt unausgedroschene Ährenteile durch einen weiteren nicht gezeigten Elevator zurück in den Dreschprozess. Die Spreu kann an der Rückseite der Siebeinrichtung durch einen rotierenden Spreuverteiler ausgeworfen werden, oder sie wird durch einen stromab des Strohschüttlers 32 angeordneten Strohhäcksler (nicht eingezeichnet) ausgetragen. Das gereinigte Getreide aus dem Korntank 50 kann durch ein Entladesystem mit Querschnecken 54 und einem Entladeförderer 56 entladen werden.Below the multi-drum thresher is a
Die genannten Systeme werden mittels eines Verbrennungsmotors 58 angetrieben und von einem Bediener aus einer Fahrerkabine 60 heraus kontrolliert und gesteuert. Die verschiedenen Vorrichtungen zum Dreschen, Fördern, Reinigen und Abscheiden befinden sich innerhalb des Rahmens 12. Außerhalb des Rahmens 12 befindet sich eine Außenhülle, die größtenteils aufklappbar ist. Bei einer anderen Ausführungsform könnte das Dreschwerk auch nur die Dreschtrommel 22, die Abstreifertrommel 24 und den Abgabeförderer 30 umfassen, d.h. als konventionelles Tangentialdreschwerk ohne Abscheidetrommel 28 und ohne Fördertrommel 26 ausgeführt sein, bei dem der Abgabeförderer 30 direkt der Dreschtrommel 22 folgt. Im Folgenden beziehen sich alle Richtungsangaben, wie vorn, hinten, ober- und unterhalb auf die Vorwärtsfahrtrichtung V des Mähdreschers 10.The systems mentioned are driven by means of an
Der Dreschkorb 34 an sich ist von konventioneller Konstruktion und umfasst zwei bogenförmige, an den Radius der Dreschtrommel 22 angepasste Seitenwangen 62, zwischen denen sich Dreschleisten 68 erstrecken. In Umfangsrichtung der Dreschtrommel 22 umfasst der Dreschkorb 34 weitere Bogenleisten 64, zwischen denen Korbdrähte 76 angeordnet sind.The concave 34 itself is of conventional construction and comprises two arcuate, adapted to the radius of the threshing
Dem Dreschkorb 34 ist bezüglich der Flussrichtung des Ernteguts eine Erntegutbearbeitungseinrichtung vorgeordnet. Die Erntegutbearbeitungseinrichtung umfasst einen Körper 66, der an einer schwenkbaren Welle 80 befestigt und in einer ersten Position (vgl.
Wie am besten anhand der
Die exzentrische Anordnung der Achse 88 gegenüber der Schwenkachse 86 führt dazu, dass das Blech 92 in der ersten Position vom Abstreifer 84 beabstandet ist (s.
Claims (9)
- Threshing cage arrangement for a combine harvester (10), with a threshing cage (34) and a crop processing device which is mounted upstream on the input side of the threshing cage (34) and comprises a body (66) with projections arranged on the surface of the body (66), wherein the body (66) is rotatable about a pivot axis (86), which extends along the input side of the threshing cage (34), between a first position, in which the projections interact with crop, and a second position, in which a smooth guide surface (70) of the body (66) interacts with the crop, and is lockable in said positions, and a scraper (84) is arranged on the input side of the threshing cage (34), said scraper extending as far as a position placed directly downstream of the body (66), characterized in that the body (66) is shaped in such a manner that it is spaced apart from the scraper (84) in the first position and lies against the scraper (84) in the second position.
- Threshing cage arrangement according to Claim 1, wherein the body (66) is shaped in such a manner that, in its second position, it outwardly deforms the scraper (84).
- Threshing cage arrangement according to Claim 1 or 2, wherein the body (66) is shaped in such a manner that only towards the end of its adjustment travel into the second position does it enter into contact with the scraper (84).
- Threshing cage arrangement according to one of Claims 1 to 3, wherein the body (66) has a region which is located downstream, is curved per se and, in the second position, lies against the scraper (84) and forms the smooth guide surface (84), and a region which is located upstream and to which the projections are attached.
- Threshing cage arrangement according to Claim 4, wherein the body (66) is flat per se in the region to which the projections are attached.
- Threshing cage arrangement according to Claim 4 or 5, wherein the body (66), in its region located downstream and curved per se, is concentric with respect to an axis (88) which is offset in relation to the pivot axis (86).
- Threshing cage arrangement according to Claim 6, wherein the axis (88) is offset to the rear in the direction of flow of material in relation to the pivot axis (86).
- Threshing cage arrangement according to one of the preceding claims, wherein the scraper (84) is designed as an angular plate, the one limb of which extends tangentially to the direction of flow of material as far as the position placed directly downstream of the body (66) and the other limb of which extends parallel to a threshing bar (68) attached to the input side of the threshing cage (34), and is connected to said threshing bar (68).
- Combine harvester (10) with a threshing cage arrangement according to one of Claims 1 to 8 which interacts with a tangentially conveying threshing drum (22) or an axially conveying axial threshing rotor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014224780.2A DE102014224780A1 (en) | 2014-12-03 | 2014-12-03 | Concave arrangement for a combine harvester |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3028560A1 EP3028560A1 (en) | 2016-06-08 |
EP3028560B1 true EP3028560B1 (en) | 2017-10-18 |
Family
ID=54608448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15195623.2A Active EP3028560B1 (en) | 2014-12-03 | 2015-11-20 | Concave assembly for a combine harvester |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3028560B1 (en) |
DE (1) | DE102014224780A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015205992A1 (en) | 2015-04-02 | 2016-10-06 | Deere & Company | Threshing or separating basket with at least one removable insert |
DE102017210710A1 (en) | 2017-06-26 | 2018-12-27 | Deere & Company | Threshing or separating basket for the grain harvest |
DE102020200948A1 (en) | 2020-01-27 | 2021-07-29 | Deere & Company | Threshing or separating arrangement with a removable insert |
DE102021128494A1 (en) | 2021-11-02 | 2023-05-04 | Deere & Company | Concave for a combine harvester |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1334910A (en) | 1918-08-27 | 1920-03-23 | Joseph W Kuntz | Adjustable concave |
DE1130640B (en) | 1959-10-29 | 1962-05-30 | Dipl Wirtschafts Ing Reinhold | Concave for the threshing device of a threshing machine, especially a combine harvester |
DE1130641B (en) | 1960-09-27 | 1962-05-30 | Dipl Wirtschafts Ing Reinhold | Concave for the threshing device of a threshing machine, especially a combine harvester |
DE4116354C2 (en) * | 1991-05-18 | 1994-06-16 | Deere & Co | Concave |
DE102007043667A1 (en) | 2007-09-13 | 2009-03-26 | Deere & Company, Moline | Concave arrangement for a combine harvester |
-
2014
- 2014-12-03 DE DE102014224780.2A patent/DE102014224780A1/en not_active Withdrawn
-
2015
- 2015-11-20 EP EP15195623.2A patent/EP3028560B1/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP3028560A1 (en) | 2016-06-08 |
DE102014224780A1 (en) | 2016-06-09 |
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